I just recently checked my HD, i dont really have much on this HD the new intel iMac stock 17". anyways, it says i have used 55 GB of disk space, there is no way, i mean the main OS X takes up like 14GB? what in the world has taken up all this space on my HD, my shared music folder is only 3.8 GB so i'm a little frustrated bc i can't figure out how this happened. is there a way that i can check what is taking up the largest amounts of space on my HD etc.? thanks people i have burnt dvd's that i own on my computer using MTR and popcorn is there someway these contents are put somewhere? edit: to mention there is one other user on this computer, my gf, but she doesn't have anything on here, i'm not sure if media files/apps etc. are being duplicated across users or what?